They can get stuck in and make things, do a bit of face-painting or just have a chat.

I love doing something like that, that's all about the kids. It's lovely to talk about books and do readings, but it's also fantastic to talk to the kids and have fun.

Sometimes the kids will come with friends, often they come on their own or with parents. But by the time they've been there a while they've probably made more friends as well.

Why are friendships so important?

Friendships in your life are really important, but when you're 9-14 years old these are the years when your friends can become even more important because sometimes your family can't understand you as well as your friends can.

We should be celebrating friendships and treating your friends well.

Everybody could be your friends so don't write anyone off because they don't like the same things as you or don't dress the same way.

You have to be true to yourself. Don't look at someone else and judge them by the way they appear. We're all very different people.

Be inclusive. Think how you would feel in their shoes.

You need a wide spectrum of friends. It's about people and being open to what they can teach you and you can learn from them.

You're working with ChildLine to say no to bullying and yes to friendship at the festivals, tell us about that...

I think everybody admires the charity and I've always supported what they do.